| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a user to freely adjust the level of a reverberant voice in a sound system. <P>SOLUTION: Provided are a power level arithmetic part 3 which finds power levels of a proximity reflected sound and a reverberant sound as to reverberation transmission characteristics of the sound system and displays them at a display part 7, a window-hung arithmetic part 4 which varies and controls the power levels of the proximity reflected sound and reverberant sound individually as the user operates an operation part 8, and a filter processing part 5 which performs filter processing for an input voice by using the reverberation characteristics after level control; and the reverberation characteristics as the result of arbitrary operation of the power levels by the user are set to target characteristics of an adaptive filter and by equalize the input voice according to the target characteristics, reverberation characteristics of the sound system can optionally be adjusted by the user as to the proximity reflected sound and reverberant sound. <P>COPYRIGHT: (C)2004,JPO |
